body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}

nav {
  background-color: #333;
  color: white;
  padding: 1em;
  text-align: center;
}

nav a {
  color: white;
  margin: 0 1em;
  text-decoration: none;
}

#content {
  padding: 2em;
}
